Its a lesser known variety of passionfruit. This one won't be in the grocery stores...its way too thin skinned.
The fruit is about the size of a hen's egg and has the most tender, delicate feeling skin when fully ripe. The outer rind is the most gorgeous, dusty apricot with such a shocking, sweet, seedy pulp. Totally amazing! Can't wait to see it clambering in viney profusion over our garden fence. I hear the secret is just to take one of the fruits out to the garden and bury it like some secret sacrifice in the dirt.